<div class="search">
   <form id="J_searchForm" action="./list.html" method="get" onsubmit ="return false">
     <div class="input">
         <input type="search" name="" id="J_keyword" placeholder="请输入手机名称"/>
     </div>
     <div class="btn">
         <button type="submit" class="J_searchBtn icon icon-search"></button>
     </div>
</form>
</div>